Skip to content

[BUG] Overly-slow mouse scroll wheel #69

@tenpn

Description

@tenpn

Describe the bug
Scrolling the contents of a window takes many more mouse wheel rotations than expected, on my logitech G402 mouse, using the unity input system. This is consistent in builds and editor, windowed mode and full-screen.

Version/Branch of UImGui:
Version: 4.1.0

Unity Version
2023.2.13

Render pipeline (HDRP / URP / Built-in)
URP

Expected behavior
A single tick of the scroll wheel should scroll a lot more lines. Or, there should be a way to tune this on a per-project basis.

If I remove the /120 on line 79 of InputSystemPlatform.cs, I get scrolling much closer to what I expect.

In the video, you'll have to believe me that I'm furiously scrolling the mouse wheel!

Here's the code shown in the video:

        private void OnLayout(UImGui.UImGui obj)
        {
            if (ImGui.Begin("DearDebugConsole") == false)
            {
                ImGui.End();
            }

            if (ImGui.SmallButton("Test"))
            {
                
            }
            ImGui.SameLine();
            if (ImGui.SmallButton("Clear"))
            {
                
            }
            ImGui.SameLine();
            if (ImGui.SmallButton("Copy"))
            {
                
            }
            
            ImGui.Separator();

            float footerToReserve = 0;//ImGui.GetFrameHeight();
            if (ImGui.BeginChild("Logs", Vector2.down * footerToReserve))
            {
                for (int i = 0; i < 1000; ++i)
                {
                    ImGui.SetItemAllowOverlap();

                    if (ImGui.Selectable(i.ToString("000"), i == m_selectedLineIndex))
                    {
                        m_selectedLineIndex = i;
                    }
                    ImGui.SameLine();
                    ImGui.TextColored(new Vector4(1f, 1f, 0), "⚠");
                    ImGui.SameLine();
                    ImGui.TextColored(s_cols[i%s_cols.Length], "Some text!");
                }
                ImGui.EndChild();
            }
        }
spiral-slow-scrolling.mp4

Metadata

Metadata

Assignees

Labels

bugSomething isn't working

Projects

No projects

Milestone

No milestone

Relationships

None yet

Development

No branches or pull requests

Issue actions